778848021

素因数分解:

$3^3\times 7^1\times {\mathrm{4120889}}^1$

素因数の和:4120905

約数の個数: 16

約数和(自身を含む): 1318684800

約数和(自身を除く): 539836779

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 4120889, 12362667, 28846223, 37088001, 86538669, 111264003, 259616007, 778848021]

約数ペア:

[(1, 778848021), (3, 259616007), (7, 111264003), (9, 86538669), (21, 37088001), (27, 28846223), (63, 12362667), (189, 4120889)]